Seiji
3 countries#8910 in United States, 2025Popularity across 3 countries
Each line is scaled to its own peak, so you can compare when Seiji was in fashion in each country, whatever the population size.
Country by country
🇺🇸 United States
517 births recorded 1914–2025 · currently #8910 · peaked in 2007 with 19 births
Most common in: Hawaii, California
Source: Social Security Administration, official birth-registration data
🇫🇷 France
33 births recorded 2002–2022 · currently #4045 · peaked in 2011 with 5 births
Source: INSEE, official birth-registration data
🏴🏴 England & Wales
6 births recorded 2012–2013 · peaked in 2012 with 3 births
Source: Office for National Statistics, official birth-registration data
🇬🇧 United Kingdom
6 births recorded 2012–2013 · peaked in 2012 with 3 births (England & Wales + Scotland + Northern Ireland combined)
Source: ONS, National Records of Scotland & NISRA (combined), official birth-registration data
United States rank history
Seiji’s rank among boys’ names, most recent 20 years on record.
| Year | Rank | vs. prior yr |
|---|---|---|
| 2006 | #5781 | — |
| 2007 | #4808 | ↑973 |
| 2008 | #6393 | ↓1585 |
| 2009 | #9864 | ↓3471 |
| 2010 | #6698 | ↑3166 |
| 2011 | #5433 | ↑1265 |
| 2012 | #5720 | ↓287 |
| 2013 | #7537 | ↓1817 |
| 2014 | #6632 | ↑905 |
| 2015 | #7066 | ↓434 |
| 2016 | #9664 | ↓2598 |
| 2017 | #6685 | ↑2979 |
| 2018 | #10760 | ↓4075 |
| 2019 | #12145 | ↓1385 |
| 2020 | #7502 | ↑4643 |
| 2021 | #9714 | ↓2212 |
| 2022 | #9823 | ↓109 |
| 2023 | #8255 | ↑1568 |
| 2024 | #8987 | ↓732 |
| 2025 | #8910 | ↑77 |
Frequently asked questions about Seiji
Is Seiji a popular name?
Yes — Seiji currently ranks #8910 among boys’ names in United States as of 2025, based on official birth records.
Is Seiji more common for boys or girls?
Seiji is recorded predominantly as a boys’ name in official United States birth data.
When was Seiji most popular?
Seiji peaked in 2007 in United States, with 19 recorded births that year.
Is Seiji rising or falling in popularity?
In United States, Seiji’s popularity is falling — its rank has slipped from #2915 in 1914 to #8910 in 2025.
How many babies have been named Seiji?
At least 556 babies have been recorded with the name Seiji across official birth statistics in 3 countries.
Is Seiji popular in more than one country?
Yes — Seiji appears in official birth records in 3 countries: United States, France, England & Wales.
What names are similar in popularity to Seiji?
Based on real 2025 ranking data in United States, names ranked closest to Seiji include Seren, Sevastian.
Similar names right now
Ranked directly next to Seiji in United States, 2025 — a real popularity match, not a subjective list.